Steilacoom High School (or SHS) is a public high school in Steilacoom, Washington, United States and is part of the Steilacoom Historical School District. It is the oldest, and to date the only, high school in the school district. Prior to its establishment, students attended grades 9-12 in the neighboring Tacoma School District and Clover Park School District. SHS was established in 1981 for grades 9 and 10, with grades 11 and 12 starting in the following two years.